2-(7-benzyloxy-2-oxo-2H-chromen-4-yl)-N-[4-(4-methoxyphenyl)-2-methyliminothiazol-3(2H)-yl]acetamide (16b, IC50= 0.590 μM) exhibited promising AChE inhibitory activity even better than donepezil (IC50= 0.711 μM). Kinetic study for compound 5b implied mixed type inhibitor which could bind peripheral anionic site (PAS) and catalytic active site (CAS) of AChE enzyme. In addition, in vivo evaluation of compounds
用各种
生物活性
化学片段合成了 20 种新型 7-苄氧基
香豆素类化合物。合成的化合物显示出显着的
乙酰胆碱酯酶 (AChE) 抑制活性。体外实验表明化合物 7-benzyloxy-4-[(4-phenylthiazol-2(3H)-ylidene)hydrazono]methyl}-2H-chromen-2-one ( 5b , IC 50 = 0.451μM), 7-benzyloxy-4-([4-(4-
甲氧基苯基)thiazol-2(3H)-ylidene]hydrazono}methyl)-2H-chromen-2-one ( 5d, IC 50 = 0.625μM), 5-amino-1-[2-(7-benzyloxy-2-oxo-2H-chromen-4-yl)acetyl]-1H-pyrazole-4-carbonitrile ( 13c , IC 50 = 0.466μM),